There are two types of faders on your mixers, channel faders and crossfaders. Your mixer will have one channel fader per channel, so usually either two or four in total, and only one crossfader.
The channel fader, sometimes known as the up fader, fades the volume of each channel up from complete silence at the bottom, to its maximum volume at the top. The channel’s gain (one of the knobs above) will set the maximum volume for each channel.
The crossfader sits horizontally below the channel faders on your mixer. This one fades the sound between two different channels. It allows you to fade one source out while fading another source in, producing a smooth changeover as you transition between two tracks.
When the crossfader is placed in the centre, and the channel faders are set to the top, all channels can be heard at the same time. So if you have two channels going, you’ll hear 50% of source A and 50% of source B.
When the crossfader is placed on the extreme left-hand side then 100% of one source (A) will be produced. Then, when it’s placed on the extreme right-hand side 100% of the other source (B) will be produced.
The crossfader is best used to quickly transition from one channel to another. If you’re after more gradual blend, use the channel faders and EQ knobs instead, keeping the crossfader positioned in the middle.
Cross Fader Assign
Designate which channel acts as Source A and which Channel as Sound B by using the Cross Fader Assign function. Set the channel to “THRU” to unassign the channel to either source. Some people choose to keep the crossfader in the centre, and only mix using the channel faders. In this case, it’s best to keep all channels set to “THRU”.
You’ll find two options to the right of your faders: one for the channel faders and one for the crossfader. These options determine the smoothness of the transition. You can produce a sudden boost or drop in volume by setting the channel fader to the far left option. Or, you can make the volume rise gradually and evenly by setting this option to the far right. For an effect in the between, go for the centre option. Similarly, for the crossfader, you can fade very quickly from one source to both, or much more gradually.